To apply nonuniform pressure normal to a face:
In the COSMOS AnalysisManager tree, right-click the Load/Restraint icon and select Pressure.
The Pressure PropertyManager appears.
Under Pressure Type, click Normal to selected face.
In the graphics area, click the face on which the pressure is applied.
Under Pressure Value, do the following:
Set Units
to the desired pressure units.
Type the pressure value in the Pressure
value box 
.
Check the Nonuniform Distribution check box.
Click inside the Select
a Coordinate System box 
then select a coordinate
system from the FeatureManager tree.
Type the coefficients of the nonuniform distribution.
Click OK.
To apply nonuniform pressure to a face in a certain direction:
In the COSMOS AnalysisManager tree, right-click the Load/Restraint icon and select Pressure.
The Pressure PropertyManager appears.
Under Type, click Use reference geometry.
Click inside the Faces
for Pressure box 
then select the face to which
you want to apply the nonuniform pressure.
Click inside Face,
Edge, Plane, Axis for Direction box 
then select an
entity for direction.
Select a pressure component according to the entity you select for direction as follows:
If you select a face
or a plane
for direction, select one of the following components: Along
plane Dir 1 
, Along
plane Dir 2 
, or Normal
to plane 
.
If you select an edge
for direction, the pressure along that edge is selected by default 
.
If you select an axis
for direction, select one of the following components: radial
, circumferential
, or axial 
.
Under Pressure Value, do the following:
Select the pressure Unit
.
Type the pressure value in the Pressure
value box .
Check Nonuniform Distribution.
Click inside the Select
a Coordinate System box then select a coordinate
system.
Type the coefficients of the nonuniform distribution
and click 
.
To modify a pressure load:
In the COSMOS AnalysisManager tree, right-click the pressure load you want to modify and select Edit Definition, or double-click the pressure load.
The Pressure PropertyManager appears.
Make the desired changes.
Click .